Overheat causing double imaging???

Perky6

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Double Imaging occurs after about 1 hour of use. Both as Cable or Over-Air Channels. Picture is fine for about 1 hour, then the TV start flickering putting up a second fainter image which is displaced by roughly one half a line width when showing text on screen, basically causing a blurred image. Samsung 55 inch QLED QN55Q7FAMFXZA 4K TV which has the One Connect Box BN-964467A.

The TV recovers if left switched off for an hour or so and then starts the issue again. The flickering between good and blurred start slowly then progresses indicating a heat problem

I have run the Samsung Self Diagnosis with it finding any issues and Rest everything from a new startup condition. The Samsung Help desk really suggested a new TV.

Have checked previous posts but seen nothing like this
1611068284402.png

Screen until around 60 -75 minutes from switch on
1611068312696.png

Screen flicks to blurred occasionally after 75 mins or so, then becomes more pronounced as time progresses

Can anyone tell me whether the issue lies in the One Connect Box or in the Circuit Card in the TV that drives the screen.
 

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